« Virtualization today | Home | My experience with Hyper-V »
Why should you use OS virtualization?
By Ilija | June 2, 2008 | Subscribe to RSS Feed
Today, most servers use about 8% of their resources (average). That’s too low. For example, you can have DHCP server on one physical machine and DNS server on another machine. That’ll work fine, but it would be better to have only one physical machine instead of two, because each machine needs it’s physical place, electric power, cooling… You can accomplish this by using server virtualization, which means that you can install few virtual operating systems on one machine, and every OS thinks that it’s the only OS on the machine.
Benefits of virtualization:
- software developing and testing. This means that you can test your application on few operating systems with different service packs on one machine.
- You buy one server, but you have few servers
- Easier backup and restore
- and everything I said before…
The only problem of OS virtualization is single point of failure, because if something happens to physical maching (problems with motherboards, graphic card…) you gonna lose all servers. But, you can avoid this by clustering your machine.
Tags: virtualization
Category: windows server 2008 |
August 23rd, 2008 at 11:32 pm
What book do you suggest on virtualization?
Ray Akkanson
September 5th, 2008 at 11:31 pm
I suggest web page http://www.virtualization.info
Also, I have learned a lot about virtualization in free PDF book “Introducing Windows Server 2008″. I’m gonna put that book on this blog for free download.